28675829

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:202

約数の個数: 32

約数和(自身を含む): 36960000

約数和(自身を除く): 8284171

約数列:

[1, 7, 13, 49, 59, 91, 109, 343, 413, 637, 763, 767, 1417, 2891, 4459, 5341, 5369, 6431, 9919, 20237, 37387, 37583, 45017, 69433, 83603, 263081, 315119, 486031, 585221, 2205833, 4096547, 28675829]

約数ペア:

[(1, 28675829), (7, 4096547), (13, 2205833), (49, 585221), (59, 486031), (91, 315119), (109, 263081), (343, 83603), (413, 69433), (637, 45017), (763, 37583), (767, 37387), (1417, 20237), (2891, 9919), (4459, 6431), (5341, 5369)]